Improvement in land-rollers



RICHARD PROVOS'I, OF

RARITAN, NEW JERSEY.

IMPROVEMENT in tnnoeottees.

Specification forming part of Letters Patent No. Ildlll, dated December 24, 1872.

To all whomtt may concern:

Be it known that I, RICHARD PRoVosT, of Raritan, in the county ot' Somerset, andvbtate of New Jersey, have invented certain-new and useful Improvements in Field or Land Rollers; and I do hereby declare the iollowing to be a i'ull, clear, and exact description ot' the construction and operation oi'. the saine, reference being had to theaccomlnluying drawing making a part ot' this specification, in which- Figure l represents a perspective view ot' the roller; and Fig. 2 represents a section through the same at or near the line ot' the draft-pole.

My in vention consists in the manner in which I have combined and arranged the rolls iu a rigid frame, so that said rolls in passing over the ground may be free to conform to the undulations or inequalities thereof independent of the main frame.

To enable others skilled in the art to make and use my invention, l will pwceed to de scribe the same with reference to the drawing.

The main frame ot' the machine is represented at A, and in this main frame is hung a. pair of rollers, B Bf, by theirjouruals to c', as follows: The journals a, at the extreme outer ends ot' athe rollers, are supported in journal boxes or bearings c that have truuni ons e upon them, so that said bearings may rock or roll, as its roller may rise and fall' at its opposite or inner end in conforming to theinequalities of the ground as it moves over it. The boxes or bearings c" are supported in down-han gers f that are attached to the end pieces ot' the main e frame. The inner ends of the pair of rollers are differently hung, and as follows: On'the front longitudinal piece ot' the main frame is attached a plate, t', which has lugs m upon it, and to these lugs are hinged arms n n., which project rearward of the machine, and which have upon their rear under sides rocking journal-bearings o, as seen in Fig. 2, in which the inner or adjacent journals a of the pair of rollers are supported, so that these adjacent ends ot' the pair ot' rollers may rise and fall with the hinged arms 'n n, in which they are respectively hung, and also move endwise by the rocking ot' the journal-bearings, and thus the rollers have a free and yielding motion in the main frame, and independent ot' the main frame, while the main trame advances them over the ground. The tongue ordrat't-pole C is rigidly fastened and braced to the front ot' the niaiu frame, and upon its rear end may be placed the drivers seat l). Underneath the pole U is hung a lug-plate, r, to the| lugs ot' which is hinged an arm or bar, s, to the rear ot' which is pivoted, as at t, a caster-wheel, E, and a spring, u, attached to thefpole O bears upon the caster-arm or bar s, so that the pole at or near its end has a spring support between itself an d the caster-wheel, and is thus relieved ot' all sudden shocks orjars, and besides forms a comfortable position for the driver in his seat D. A clip, c, on the p'ole prevents the arm .s from dropping below a given point, while it is i'ree to rise above that point.

The heads F F ot' the rollers I propose to malte ofcast-irou, and the journals a c united'y thereto otA wrought-iron, These heads may be fastened to the rolls on the inside thereof by nuts, rivets, or keys, and the inner heads ot the pair may be made heaviest to compensate for the weight ot the frame.

`Having thus fully described my invention,

In combination with a rigid main frame, one or more pairs of rollers when hung in pivoted and rocking boxes o, attached to the main frame, at their outer ends, and in pivoted and rocking boxes o, hung to or in the rear ends ot' the pivoted and swinging horizontal (or nearly so) arms n, at their inner ends, substantially as and for the purpose set forth.

Witnesses: RIGHaRD PROVOST.

FRED. J. FRELINGHUYSEN,

THEO. FRELINGHUYSEN. 

